https://www.theregister.co.uk/2017/09/25/apple_has_cpu_cycles_to_burn/

While the iPhone 8 retains the same unremarkable design for the fourth year running, the internals are a different story. Thanks to extraordinary improvements in semiconductor design, it has been able to shrink the capacity and size of its battery pack, while opening up a significant performance lead over Qualcomm and Samsung.

The six-core CPU A11 is now complemented, for the first time, by an Apple-designed GPU.